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浏览/检索结果: 共10条，第1-10条 帮助

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Strong interface contact between NaYF4:Yb,Er and CdS promoting photocatalytic hydrogen evolution of NaYF4:Yb,Er/CdS composites 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2022, 卷号: 102, 页码: 1-7
作者:  Zhu, Huaze;  Yang, Yongqiang;  Kang, Yuyang;  Niu, Ping;  Kang, Xiangdong
  |  收藏  |  浏览/下载：40/0  |  提交时间：2022/07/01
Enhanced photovoltaic performance of dye-sensitized solar cells based on NaYF4:Yb3+, Er3+-incorporated nanocrystalline TiO2 electrodes 期刊论文  OAI收割
Journal of Colloid and Interface Science, 2015, 卷号: 451, 页码: 15-20
作者:  Zhu, Guang;  Wang, Hongyan;  Zhang, Quanxin;  Zhang, Li
收藏  |  浏览/下载：23/0  |  提交时间：2015/10/29
NaYF_4∶Yb~(3+),Er~(3+)纳米粒子的上转换发光的温度特性 期刊论文  OAI收割
发光学报, 2013, 期号: 10, 页码: 1283-1287
作者:  曾庆辉;  孔祥贵
收藏  |  浏览/下载：24/0  |  提交时间：2014/03/07
Upconversion properties of Er3+-Yb3+:NaYF4 phosphors with a wide range of Yb3+ concentration 期刊论文  OAI收割
JOURNAL OF LUMINESCENCE, 2013, 卷号: 135, 页码: 128-132
作者:  Cao, B. S.;  He, Y. Y.;  Zhang, L.;  Dong, B.
  |  收藏  |  浏览/下载：19/0  |  提交时间：2019/04/09
NaYF_4:Yb~(3+),Er~(3+)纳米粒子的上转换发光的温度特性 期刊论文  OAI收割
发光学报, 2013, 期号: 10, 页码: 1283-1287
作者:  曾庆辉;  孔祥贵
收藏  |  浏览/下载：49/0  |  提交时间：2014/03/07
Influence of high temperature annealing in nitrogen on upconversion luminescence of -NaYF4: Yb3+, Er3+ hexagonal sub-microplates (EI CONFERENCE) 会议论文  OAI收割
2012 International conference on Function Materials and Nanotechnology, FMN 2012, May 19, 2012 - May 20, 2012, Zhengzhou, China
作者:  Zhao J.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
The pure -NaYF4: Yb3+  Er3+ hexagonal sub-microplates were successfully prepared by the combination of coprecipitation and hydrothermal methods using sodium citrate as chelator. The size of them is about 600 nm 400 nm (side length thickness). The obtained sample was divided into two parts and one of them was annealed in nitrogen at 300 C for 2 hours. The crystal structure of the -NaYF4: Yb3+  Er3+ hexagonal sub-microplates before and after annealing treatment is hexagonal phase. Under the excitation of 980 nm diode laser  the upconversion luminescence intensity the sample after annealing is much stronger than that of the sample without annealing treatment. High temperature annealing process improved the crystallization of the sample  resulting in the decrease of the nonradiative relaxation and the enhancement of the upconversion luminescence. (2012) Trans Tech Publications  Switzerland.  
Influence of sensitizer concentration on the upconversion luminescence of NaYF4: Yb3+, Er3+ nanoparticles (EI CONFERENCE) 会议论文  OAI收割
2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012, June 16, 2012 - June 17, 2012, Wuhan, China
作者:  Zhao J.;  Zhao Y.;  Zhao Y.;  Zhao Y.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
A series of NaYF4: Yb3+  Er3+ nanoparticles with different doping concentration were successfully prepared by the combination of coprecipitation and hydrothermal methods using sodium citrate as chelator. Upconversion luminescence can be observed in all of the samples at room temperature. Fixed the Er3+ concentration with 1 mol% unchanged  the effect of the Yb3+ concentration on the upconversion luminescence of NaYF4: Yb3+  Er3+ samples were studied when the doped Yb3+ concentrations were 0 mol%  1 mol%  2 mol%  5 mol%  10 mol% and 20 mol%  respectively. As increasing the Yb 3+ concentration  the total intensity of the upconversion luminescence of the samples is increasing while the ratio of red to green emission increases firstly and then decreases. The maximum ratio value is 22.1 when the Yb3+ concentration is 10 mol%. It is found that the cross relaxation and cooperative sensitization effect are the reasons for the phenomenon above. (2012) Trans Tech Publications.  
Mn2+ Dopant-Controlled Synthesis of NaYF4:Yb/Er Upconversion Nanoparticles for in vivo Imaging and Drug Delivery 期刊论文  OAI收割
ADVANCED MATERIALS, 2012, 卷号: 24, 期号: 9, 页码: 1226-1231
作者:  Tian G(田甘);  Gu ZJ(谷战军);  Zhou LJ(周亮君);  Tian, G;  Gu, ZJ
收藏  |  浏览/下载：34/0  |  提交时间：2016/04/08
Designing lanthanide-doped nanocrystals with both up- and down-conversion luminescence for anti-counterfeiting 期刊论文  OAI收割
nanoscale, 2011, 卷号: 3, 期号: 11, 页码: 4804-4810
Liu YL; Ai KL; Lu LH
收藏  |  浏览/下载：26/0  |  提交时间：2012/06/12
Half opened microtubes of NaYE(4):Yb,Er synthesized in reverse microemulsion under solvothermal condition 期刊论文  OAI收割
journal of crystal growth, 2010, 卷号: 312, 期号: 21, 页码: 3214-3218
Huang YJ; You HP; Song YH; Jia GA; Yang M; Zheng YH; Zhang LH; Liu K
收藏  |  浏览/下载：21/0  |  提交时间：2012/06/07